Well, if it's all legal then ... NO WORRIES!
And my congratulations to the parties responsibile for an awesome bit of trail advocacy work. Well, it's more than a bit of work. More like an ultramarathon.
Sorry for the rain-on-your-parade comments. If you care to hop on over to nobmob.com and check out the Ranger Danger section, you'll see some outstandingly officious and ill-informed comments from rangers about mtb use of national park land, and some outstandingly ill-judged comments (including one or two of my own) in response.
Trail advocacy is danged hard work and for anyone who has the patience and stamina required to navigate the multi-departmental bureaucracy to get a successful result, you have my heartfelt appreciation.
Now if we could just get that happening back east with NPWS...